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Diffstat (limited to 'src/libs/engine/NodeBase.hpp')
-rw-r--r-- | src/libs/engine/NodeBase.hpp | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/src/libs/engine/NodeBase.hpp b/src/libs/engine/NodeBase.hpp new file mode 100644 index 00000000..46c004df --- /dev/null +++ b/src/libs/engine/NodeBase.hpp @@ -0,0 +1,108 @@ +/* This file is part of Ingen. + * Copyright (C) 2007 Dave Robillard <http://drobilla.net> + * + * Ingen is free software; you can redistribute it and/or modify it under the + * terms of the GNU General Public License as published by the Free Software + * Foundation; either version 2 of the License, or (at your option) any later + * version. + * + * Ingen is distributed in the hope that it will be useful, but WITHOUT ANY + * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef NODEBASE_H +#define NODEBASE_H + +#include "types.hpp" +#include <string> +#include <cstdlib> +#include "Node.hpp" + +using std::string; + +namespace Ingen { + +class Plugin; +class Patch; +class ObjectStore; + +namespace Shared { + class ClientInterface; +} using Shared::ClientInterface; + + +/** Common implementation stuff for Node. + * + * Pretty much just attributes and getters/setters are here. + * + * \ingroup engine + */ +class NodeBase : public Node +{ +public: + NodeBase(const Plugin* plugin, const string& name, size_t poly, Patch* parent, SampleRate srate, size_t buffer_size); + + virtual ~NodeBase(); + + virtual void activate(); + virtual void deactivate(); + bool activated() { return _activated; } + + virtual void post_process(SampleCount nframes, FrameTime start, FrameTime end); + virtual void process(SampleCount nframes, FrameTime start, FrameTime end) = 0; + virtual void pre_process(SampleCount nframes, FrameTime start, FrameTime end); + + virtual void set_port_buffer(size_t voice, size_t port_num, Buffer* buf) {} + + virtual void set_buffer_size(size_t size); + + void add_to_store(ObjectStore* store); + void remove_from_store(); + + SampleRate sample_rate() const { return _srate; } + size_t buffer_size() const { return _buffer_size; } + size_t num_ports() const { return _ports ? _ports->size() : 0; } + size_t poly() const { return _poly; } + bool traversed() const { return _traversed; } + void traversed(bool b) { _traversed = b; } + + const Raul::Array<Port*>& ports() const { return *_ports; } + + virtual Raul::List<Node*>* providers() { return _providers; } + virtual void providers(Raul::List<Node*>* l) { _providers = l; } + + virtual Raul::List<Node*>* dependants() { return _dependants; } + virtual void dependants(Raul::List<Node*>* l) { _dependants = l; } + + virtual const Plugin* plugin() const { return _plugin; } + + virtual void set_path(const Path& new_path); + + /** A node's parent is always a patch, so static cast should be safe */ + Patch* parent_patch() const { return (Patch*)_parent; } + +protected: + const Plugin* _plugin; + + size_t _poly; + + SampleRate _srate; + size_t _buffer_size; + bool _activated; + + Raul::Array<Port*>* _ports; ///< Access in audio thread only + + bool _traversed; ///< Flag for process order algorithm + Raul::List<Node*>* _providers; ///< Nodes connected to this one's input ports + Raul::List<Node*>* _dependants; ///< Nodes this one's output ports are connected to +}; + + +} // namespace Ingen + +#endif // NODEBASE_H |